How should you tackle Industrial Odours?

Managing industrial odours can feel like navigating a maze. Should you invest heavily in large-scale containment systems, or could a lighter, low-cost solution do the trick? The answer isn’t one-size-fits-all, it depends on your site, the odour sources and what’s practical. Let’s break it down for you. 

High-CAPEX: Cover, Extract and Treat 

This classic approach contains industrial odours, extracts the air and treats it with scrubbers, biofilters, or carbon filters. 

Why it works: 

• Controlled treatment environment for consistent results
• Regulators understand and trust it
• Handles high industrial odour loads effectively
• Weather-independent 

Considerations: 

• High upfront cost and ongoing maintenance 
• Complex to operate and install 
• Not practical for large open areas like lagoons or stockpiles 

Best fit: Enclosed spaces, continuous high industrial odour loads and sites with the budget to support long-term operation. Examples: sludge-handling buildings, indoor waste sorting, compact process areas. 

Low-CAPEX: Misting at the Source 

Low-CAPEX systems spray odour-neutralising solutions where odours occur. Unlike masking sprays, they neutralise industrial odours at the molecular level. 

Benefits: 

• Lower capital and operating costs 
• Rapid deployment 
• Flexible, intermittent operation 
• Ideal for open, hard-to-enclose areas 
• Can supplement high-CAPEX systems 

Considerations: 

• Effectiveness can be influenced by weather 
• Only proven neutralising chemistry works 
• Not suited for extremely high concentrations in enclosed spaces 

Best fit: When enclosure isn’t feasible, industrial odours are moderate or intermittent, budgets are tight, or quick deployment is needed. Examples: open wastewater tanks, landfill working faces, outdoor stockpiles. 

Combining Approaches 

Many sites now use a hybrid approach: high-CAPEX for enclosed, high-load areas, low-CAPEX for open, impractical sources and misting as backup during peak loads. This reduces total spend and maximisescoverage. 

Making the Right Decision 

Ask yourself: 

1. Can the source be enclosed? 
2. What’s the odour load – extreme and continuous or moderate/intermittent? 
3. What budget is available? 
4. Could a hybrid approach optimise results? 
5. Do regulatory requirements demand specific control measures? 

Conclusion 

There’s no single “best” solution. High-CAPEX works for enclosed, high-load areas with sufficient budget. Low-CAPEX suits open areas, moderate industrial odours, and rapid deployment. Combining both strategically often delivers the most efficient and cost-effective industrial odour control. Success comes from matching technology to your site’s reality, not following tradition or assuming higher cost equals better results. 

If you’d like to learn more, all of our products are tailored and designed to effectively tackle industrial odours.